I’ve found another cool way to do key chords while using VIM mode using the vimrc-support plugin
Using the space as a leader key and with the help of the special obcommand
that the plugin provide you can have access all obsidian available commands
After enabling the vimMode type :obcommand and open the console you get the names of the available commands then you can do something like this in the vimrc file
unmap
exmap openGraph obcommand graph:open
nmap og openGraph
This works very nice to people who mainly use vimmode